Means for operating pressure-bellows of organs



(No Model.)

7 W. SGHWARZE. MEANS FOR'OPERATING PRESSURE BELLOWS 0F ORGANS.

Patented May 14, 1895.

2 Sheets-Sheet 1v ELL If lNVENTOf? ATTORNEYS.

(No Model.) 2 Sheets-Sheet 2.

W. SCHWARZE. MEANS FOR OPERATING PRESSURE BELLOWS 0P ORGANS.

Patented May 14, 1895.

WITNESSES.

UNITED STATES PATENT OFFICE.

\VILLIAM SOHVARZE, OF BROOKLYN, NEW YORK.

MEANS FOR OPERATING PRESSURE-BELLOWS OF ORGANS.

SPECIFICATION forming part of Letters Patent No. 539,308, dated May 14,1895.

Application filed May 23, 1894:.

To aZZ whom it may concern.-

Be it known that I, \VILLIAM SOHWARZE, of Brooklyn, in the county ofKings and State of New York, have invented a new and Improved Means forOperating the Pressure- Bellows of Organs, of which the following is afull, clear, and exact description.

My invention relates to an improvement in organs, and it has for itsobject to provide an improvement upon the means for operating thepressure box bellows, shown and described in an application for LettersPatent filed of even date herewith, the prime object being to simplifythe construction shown inthe aforesaid application, and to provide foras quick a response between the pressure of a key and the speaking of anorgan tube, the valve or pallet controlling the bellows being actuatedeither by pressure or exhaust.

The invention consists in the novel construction and combination of theseveral parts, as will be hereinafter fully set forth, and pointed outin the claim.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar figures and letters of referenceindicate corresponding parts in all the views.

Figure l is a vertical sectional View ofa portion of an organ,illustrating the application thereto of the improvement. Fig. 2 is anenlarged vertical section taken through the wind-chest of the organ,thebellows, and valve, and likewise through thepressure-box and auxiliaryor operating-bellows, illustrating the bellows in the wind-chest inposition to open the pallet of the sounding-board; and Fig. 3 is a viewsimilar to Fig. 2, illustrating, however, a slight modification in themeans for operating the bellows of the wind-chest, the pressure-boxbeing substituted by an exhaust-box and the position of theoperating-bellows being changed.

The organ pipes A and the sounding board B are of the usualconstruction, and are connected in the usual manner, as are likewise thepallets C, belonging to the sounding board and serving to establishcommunication between the wind chestD and the organ pipes. A pressurebox E, is employed in one form of the improvement, and an exhaust box Ein a second or modified form, the said boxes be- Serial No. 512,160. (Nomodel.)

ing ordinarily adjacent to the wind chest and in such a position thatthe operative mechanism contained therein may be conveniently connectedwith a key of the organ.

The bottom board of the bellows 10 contained in the wind chest D, andconnected through the medium of a link 11 or its equivalcnt with thepallet O of the sounding board, is secured in any approved manner to thebot tom wall of the wind chest, and the bellows is provided with anopening 12 in its bottom board, communicating with a channel 13,produced in the bottom of the wind chest and extending through saidbottom. The opening 12 and channel 13 are adapted not only to receiveair for the purpose of inflating the bellows,but are also employed toexhaust the air therefrom. A second through opening 14:, is produced inthe bottom of the wind chest D, and both of these openings 12 and 14Care in communication with what 1 term a valve box 15, constructed belowthe bottom of the wind chest and provided with a fiat valve 16, thevalve being preferably square; and in the bottom of the valve box anopening 17 is formed, adapted as an exhaust opening, and the rear openside of the valve box is closed by a removable board or plate 18, inorder that access may be had to the box for repairs, or for cleaning.

A bracket 19 of any approved construction is supported beneath the valvebox, and upon this bracket the bottom board of a bellows 18., issecured, the top board of the bellows being connected with the Valve 16through the medium of a link 20, or its equivalent. I denominate thebellows 18 an operating bellows, since through its medium primarily thebellows contained in the wind chest is operated.

The operating bellows l8" is provided with an exhaust aperture connectedwith an exhaust channel 21 in the bracket, and the said operatingbellows has an opening 22 produced in its bottom board, communicatingwith a channel 23, which channel is in communication with a pressureboxE in the form of the improvement shown in Figs. 1 and 2.

The channel communicating between the pressure box and operating bellowsis closed normally by a pallet 24, having a lever extension 25, thepallet being pressed in closed po- IOO sition by a spring 26; and thelever extension of the pallet is connected with a key F by a link 27,air being supplied to the pressure box from a suitable source throughthe pipe 28 leading into the box. Under this form of construction, whena key is pressed, the pallet in the pressure box E is opened, uncoveringthe channel 23, and the wind will pass from said box into the operatingbellows, expanding that bellows and thereby causing the valve 16 in thevalve box to close the opening let in the bottom of the wind chest.Therefore, the valve, which had been seated over the exhaust opening 17in thevalve box will uncover that opening, and the air contained in thebellows in the wind chest will escape through the registering opening 12in the bellows and 13 in the wind chest into the valve box and outthrough the exhaust opening 17 therein, the collapse of the bellowsserving to draw down the sounding board pallet O to produce a.

sound from the tube. The moment the key is released the pallet in thepressure box closes the channel 23, the wind in the operating bellowswill exhaust through the channel 21, and the square or fiat valve 16will seat itself over the exhaust opening 17 in the valve box,uncovering the opening 14 in the bottom of the wind chest, and the airfrom the wind chest will pass out therefrom through the opening 14 intothe valve box and through the registering openings 12 and 13 into thebellows 10 in the wind chest, inflating the latter and causing a closureof the sounding board pallet and a consequent stoppage of the sound.

The operation is exceedingly quick, the sound from the tube respondingalmost simultaneously to the pressure of the proper key. Theconstruction is simple, and the valve 16 is exceedingly useful andeconomic, when constructed as above set forth, namely, made square orflat.

In the form of the improvement shown in Fig. 3, the operating bellowsislocated in the wind chest, and is designated as 29, its bottom boardbeing secured to the wind chest. The operating bellows is provided withan opening 30 in its top board, through the medium of which it isinflated, and the said board is connected by a stem or link 31 with alever 32, fulcrumed'at or near its center to a suitable support, theopposite end of the lever being connected by a link or rod 33 with thefiat or square valve 16. The operating 5 5 bellows in this instanceoperates upon the wind chest bellows when the air is exhausted from theoperating bellows. Therefore, instead of a pressure box an exhaust box Eis used, and the operating bellows is provided with an exhaust opening34, connecting with an exhaust channel 35 made in the bottom of the windchest, the said channel being in communication with a pipe 36,communicating with the interior of the exhaust box through the medium ofa port or channel 36, which port or channel is normally closed throughthe medium of a pallet 37, connected by a stem or link 38 with a key F,and controlled by a spring 39. The exhaust box is connected with anyexhaust mechanism and bellows, for example through the medium of a pipe39 or its equivalent. In the operation of this form of organimprovement, when the key is pressed the pallet 37 in the exhaust box isopened and the air contained in the operating bellows exhausts into saidbox, collapsing that bellows, depressing the end of the lever 32 withwhich the bellows is connected and elevating the end of the lever withwhich the cut off valve 16 is connected, whereupon the wind chestbellows will exhaust in the manner heretofore described. When the key isreleased the exhaust pipe 36 is closed at the end leading into theexhaust box by the valve 37, and the operating bellows 29 is inflated byair entering it from the wind chest through the opening 30, whereupon areverse action of the lever 32 is obtained, and the cut-01f valve 16closes over the exhaust opening 2 in the valve box.

As has been previously stated, by making the cut-off valve square inplan view, the valve is rendered much more serviceable than other for-msof valves, since it may be placed in a much smaller compass and in amuch smaller receptacle, and may be utilized to open one port whileclosing another.

Having thus described my invention, 1 claim as new and desire to secureby Letters Patent-- The combination with the sounding board B havingoutlets leading to the organ pipes, the wind chest D under the soundingboard, the pallets O controlling communication between the chest andsounding board, and provided with an operating bellows 10 in the windchest, of a valve box 15 under the rear portion of the wind chest bottomand provided with a removable rear wall 13, a channel 13 connecting thebellows 10 with the said valve box, a second channel 14 extendingthrough the bottom of the wind chest. into the top of the valve box, anexhaust 17 in the bottom of the valve box, a flat valve 16 hinged in thevalve box to alternately open and close the channels 14, 17, a bracket19 below the .valve box, a bellows 18 having its bottom board mounted onsaid bracket, a link 20 connecting the top board of the bellows 18 withthe valve 16 through channel 17, a pressure box E below the bracket,channels 22-23 connecting the pressure box with the bellows 18 throughits bottom board, a pallet 24: in the pressure box and means foroperating the pallet from the organ key, substantially as described.

WILLIAM SOHWARZE. Witnesses:

J. FRED. ACKER, C. SEDGWICK.

